Mixing-valve for explosive-engines.



No. 882,939. PATENT-ED MAR. 24. T908.

HQC. FRICKE & G. E. TURNER. MIXING YALVETOR EXPLOSIVE ENGINES.

APPLIOATIOH FILED JULY 30. 1907. 1

2 SHEETS-SHEET 1.

[NI/EN 6 No. 882,989. PATENTED MAR. 24; 1908;.

H. G. FRIGKB & G. EJTURNEE MIXING VALVE FOR EXPLOSIV'E ENGINES.

APPLICATION FILED JULY 0.. 90

3 1 7 2-SHEBIS-SHEET 2.

. I BY 3 W1 NES UNITED sTArEs PATENT OFFICE;

HARRY C. FRICKE AND GEORGE E. TURNER, OE IITTSBURG, PENNSYLVANIA, ASSIGNORS TO TURNER-FRICKE MANUFACTURING COMPANY, OF IITTSBIYRG, PENNSYLVANIA.

MIXING-VALVE FOR EXPLOSIVE-ENGINES.

No. ceases.

- To all whom it may concern:

Be it known that we, HARRY C. Enron: and GEORGE E. TURNER, citizens of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Im-.

rovements in Mixing-Valves I for Explosiven'gines; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention consists in the novel featureshereinafter described reference being had'to the accompanying drawings which illustrate one form in which we have contemplated embodying our invention and the invention is fullydisclosed in the following description and claims.

In the construction and operation of mixing valves for explosive engines, or internal combustion engines, much difliculty has been expereinced in obtaining a thorough and de sired mixing'of the air with the gas or other fuel constituent to form the explosive mixture supplied to the cylinders.

The objects of our invention are to secure a better and more uniform mixing of the fuel constituent and air, while mamtammg the proper proportions, regulatlng the quantity of fuel and air by nie'ans of a governor and also to simplify the construction and arrangement of the valve mechanism, so that it can be opened and the working parts removed conveniently and expeditiously.

In carrying out our invention to securethe desired mixing of the gas or fuel and air, we arrange the inlet for the fuel preferably in a direct line with the outlet for the mixture and" provide a ertures for admitting the air on opposite si( es of the full inlet and in close proximity thereto, so that as the fuel is drawn in by the suction of the engine, the air ,to be mixed therewith will be drawn in equally on op osite sides, and mixed intimately with t. .e fuel, which may be either natural or artificial gas, or carbureted air or hydrocarbon vapor.

Referring to the accompanying drawings,

Figu e 1 represents a three cylinder explosive or internal combustion engine having our improved mixing valve applied thereto and connected with a centrifugal] governor operated by the engine. Fig. 2 is a horizon- Specification of Letters Patent. Application filed July 30, 1907. Serial No. 386,218.

Patented March as, 1908.

engine, and B represents a manifold or ipe communicating with each of said cylin ers,

extending preferably horizontally in a straight line, and c osed at one end as indicated at b. The opposite end of the manifold is connected with our improved mixing valve, which is preferably constructed and arranged as shown in the accompanying drawings.

C represents the outer casing of the valve which is bored. out vertically to form a cylindrical chamber, and is provided with an outlet aperture 0 from said chamber discharging directly into the end of the manifold B, and thevalve casing is secured to the manifold in any desired manner as by screws b, as indicated in the drawing, thus supporting the valve in osition on the engine.

The cylindricalhvall of the casing C is also provided with one, two or more fuel inlet openings or ports 0 0 (two being shown) which are in the form of rectangular slits or slots and are located op osite the center of the outlet aperture c. Fuel, such as artificial or natural gas, hydrocarbon vapor, or carbureted air is admitted to the said inlet aperture or apertures, in any desired way.

In this instance the casing is shown provided with a recess outside of said a ertures, having a flanged plate c secure to its walls, said plate being provided with an internall threaded aperture 0 in axial alinement with the outlet aperture 0, for the reception of a pipe for conveying the fuel from a suitable source. Where gas is employed, it is admitted preferably at atmos heric pressure, a

pressure regulating device not shown) being employed to maintain the uniform pressure of the gas, in a well known manner.

Thevalve casing C is also provided with air inlet ports or apertures c c, which are located on opposite sides of the fuel inlet port or ports, and in such positions that a ine connectin the centers of the opposite air ports will he perpendicular or substantially perpendicular to a line through the horlzontal centers of the gas ports and the outlet aperture, as clearly indicated in Fig. 2

by dotted lines. We prefer that the oppocommunicati ture whic site air ports 'shall be so arranged with respect to the gas ports thatthe 'air will enter the valve from both sidesat an angle of substantially 90 to the direction in which the gas enters, as shown in the drawings, but we do not limit ourselves to this exact construction, as the air ports may be formed nearer to'or further away from the gas ports than there shown, if des1red,'butin all cases the air ports should be on 0 posite sides of the gas ports and substantia ly equi-distant therefrom.

D re resents the valve which is in the form 'of a ho ow cylinder, preferably closed at top and bottom and having gas ports 1 d and adapted. to register both horizontally and vertically with the gas ports 0 c in the easin air ports d d, adapted to register'vertica ly with, but of greater length horizontally than the air ports, and an outlet aperture d with the outlet aperture 0 in the casing an .large enough for the passage of the largest quantity is require to pass'therethrough. From this construction it 5 'ollows that a horizontalrotary movement of the valve, (su

posing the gas ports of valve and casing to e in registrat on) will cause the gas ports to be part1 cutoff without affecting the air ports, there y effecting a reduction in the proportion of as or fue to air, in the resulting mixture, w' hile the vertical movement of the valve will cut off the supply of both air andgas or fuel more or less without affecting the roportions thereof in the mixture. The

onzontal rotary movement .of the valve is designed to be accomplished by hand adjustment and the vertical movement by the action of a centrifugal governor, as hereinafter described.

'The valve D is mounted rotatably on a valve rod D which has a portion d of reduced diameter passing throu h central apertures in the heads of the'va ve, forming a shoulder (1 below the valve, and a nut or nuts (1 on the upper threaded end of the part "d secures the valve firmly to the rod, while permitting the valve to be rotated slightly in spring E engages said collar, at its upper end and has its lower end supported by an adiustable hollow plug a screwed into the ower end of said sleeve and provided with a' jam nut c. This spring is so adjusted as to of theexploslve m1x-.

compensate for the weight of the valve and rod and render the action of the governor more sensitive 'and accurate. The valve may, however, be counterbalanced in other ways if desired.

0 represents a top plate or cap for closing the upper end of the casing, which is held in place by suitable screws. By the simple re moval of this plate and the nuts LP, the valve may be lifted out for ins ection or repair.

The ositi'on of the va ve, with respect to its vertical axis is determined by the following devices. The bottom plate 0 is provided with a vertically disposed pin 0 and extending through an aperture in the bottom of the valve, in which it has a sliding engagement. The bottom plate 0 is provided with a hand lever o for adjusting 1t rotatably, which in this instance is a separate piece having a circular aperture in one end fittin around the sleeve 0 and a hole through which the lower ortion of the pin 0 extends. Said hand ever is also provided with a clamping surface c? to engage the stationary ring c.-;""A thumb nut e is screwed on "the lower end of the pin 0 and when this nut is turned up the clam ing face 0 of the lever isforced against the ring 0, thus holding the rotatable bottom plate 0 and pin c in their adjusted positions. Obviously, to adjust the valve rotatably to diminish or increase the proportion of gas or fuel in the mixture, it is only necessary to loosen nut 0 and move lever c in one direc-- tion or the other,"and then set up nut 0 and this can be done while the engine is running.

The sliding engagement of the pin 0 and the valve, will permit the vertical movements of the valve under the action of the governor in whatever position the valve may beset. The lower end of valve rod D is connected by a pivoted lever F with the governor G, as indicated in the drawings, so that the areas of the air and gas ports are increased and diminished by the governor, in accordance with the load requirements of the engine, and without, affecting the predetermined proportions of fuel and air in the The connection between the valve rod D and the governor, is preferably such as will prevent the rod from turning when mixture the valve proper is rotated on the .rod in eflecting such occasional adjustments as may be necessary.

During the suction stroke of any one of the engine cylinders the gas or fuel is drawn in through the fuel inlet ports and air is drawn in on opposite sides of the stream of gas, both air and gas passing in a straight line through the outlet aperture and causing the gas and air to combine very much in the same manner as in a Bunsen burner, and producing a very uniform and satisfactory mixture. The proportions "of the mixture as previously ex lain'ed are subject to hand adjustment at al times and the quantity of air and fuel is at all times under the regulation of the governor, without affecting the pre viouslydetermined roportions.

What we claim an desire to secure by Letters Patent is z- 1. A mixing valve for explosive engines,

having a continuously open'and unobstructed fuel inlet, an outlet for the mixture in line with the fuel inlet and separate air inlets on opposite sides of the fuel inlet, substantially as described. e s

2. A mixing valve for explosive engines,

having a continuously open and unobstructed fuel inlet, an outlet for the mixture 3. A mixing valve for explosive engines,'

having a continuously open and unob- Q structed fuel inlet, an outlet for the mixture in line with the fuel inlet, and separate air inlets on o positeQside's, of the fuel inlet and so arrange that a line connecting the centers of said air inlets is substantially perpendicular to a line connecting the centers of said outlet and fuel inlet, substantially asdescribed.

4. In a mixing valve for ex losive engines, the combination with the va ve casing pro .vided with a fuel inlet port, an outlet for the mixture 0 posite and in line with said inlet port, and air inlet orts arranged opposite to each other an on opposite sides of the fuel inlet port, a rotary and verticallK movable valve in said casing provided wit ports adapted to be brought into registration with the ports and apertures of the casing, a hand operated means-for adjusting said valve in one of saiddirections a d a governor for adjusting said valve in the other of said directions, substantially as described.

5, In a mixing valve for ex losive engines, indrical valve casing provided with a fue inletport, rair inlet ports, andan outlet for the mixture and a removable head for closing one end of said casin of a c lindrical valve fitting said casing an I r'ovi ed with apertures adapted to be broug t into registration with the a ertures in said casing, -a valve rod exten ing through, said'valve, a removable securing device" ad'acentto said removable head, for securing t e valve to the valve rod whereby said head may be removed, andthe valve removed from said rodand the valve casing;- a governor connected to said rod-w and a hand operated ad{usting device detachably eng tgiig said va ve, substantially as descr e a In a mixing valve for exlplosive engines,

the combination with a cy indrical casing provided with a fuel inlet 0rt, an outlet for the mixture opposite'sair inlet port, air inlet ports arranged on opposite sides of a line connecting the, fuel inlet and mixture casing and valve, and su porting said valve,

arota hand Operated evice having a part locate eccentncallywith respect to said valve, and slidingly engaging an aperture therein, for effecting the rotary ad'ustment of'saidvalve, substantially as descri ed.

7 Ina mixing valve for ex losive engines, the combination wlth a cyindncal valve casing having a fuel inlet port, an outlet aperture for, mixture opposite and in line with said fuel inlet, and air inlet ports,-dis- I posed on o posite sides of a line connecting said fuel in at port and said mixture outlet, a rotatable plate closing one end of said oasing and a removable head closing the'other end of said casing, of a cylindrical valve fitting I said casing and havin apertures adapted to register. with those 0 said casing -a governor operated valve rod extending.

through said rotatable bottom plate and secured to said valve, a projection extending from said rotatable plate and having a sliding en agement with said valve eccentrically to sai rod, means for rotating said plate, to effect the rotation of said valve in said casing, and means for holding said plate in fixed relation with said valve casing, substantially as described.

8. In a mixing valve for ex losive engines, the combination with the valve casin providedwith an open and unobstructe fuel inlet port, an outlet for the mixture opposite and in line with said inlet port and sepa-' rate air inlet ports located opposite to each other and on o posite sides of a line connecting the fue inlet and mixture outlet ports, and means for adjusting the size of certain of said ports to varythe roportion ofgas and air in the mixture, su stantially vided with an 0 en and unobstructed fuel inlet port, an out et for the mixture opposite and in line with said inlet port and separate .air inlet ports locatedfopposite to each other and on opposite sides-of a'line connecting the fuel inlet and mixture outlet orts, a movable valve. in said casing provi ed with ports adapted to be brought into registration with the ports and apertures in said casing, and means for moving said v'alve in said casing to vary the size of ceitain of said ports, substantially as desctibed. f 10. In amixing valve for explosive e'ngines, the combination with the valve casi rovided with an 'open and unobstruct iel inlet (port, an outlet for the mixture opposite an "in line with said inlet, port and separate air inlet ports located opposite to 'eaeh otherland en 0 posite sides of a line I the sizeef the air inlet or mixture outlet 1 connecting the fuel in et and mixture outlet apertures, substantially as described.-

orts, a rotary Cylindrical valve in said ce's- In testimony whereof we; efiixour signm mg. provided with a gag inlet 'leperture tures, in the presence of two Witnesses. 5 adapted to re ister Wit t e as in et aper- 'ture of the ca s ing, and having air apertures and a mixture outlet aperture larger than the respective apertures in the easing; and

I Witnesses: I means for rotating send valve to vary the BEATRICE FITZGERALD,

10 amount of gas admltted without varyingl JESSIE C. RODGERS. 

